/* header */
.header {
  height: 290px;
  width: 100%;
}
.header .header_nav {
  height: 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #ccc;
}
.header .header_nav .title {
  font-family: "YWtail";
  color: #fff;
  font-size: 36px;
  display: none;
  transition: all 0.1s;
  cursor: pointer;
}
.header .header_nav .title:hover {
  transform: scale(1.2);
}
.header .header_nav .nav_list {
  height: 80%;
}
.header .header_nav .nav_list a {
  display: inline-block;
  height: 100%;
  color: #fff;
  width: 72px;
  font-size: 14.5px;
  line-height: 63px;
  text-align: center;
  cursor: pointer;
  transition: all 0.1s;
  text-decoration: none;
}
.header .header_nav .nav_list a:hover {
  background-color: rgba(0, 0, 0, 0.5);
  font-size: 16px;
}
.header .header_nav .nav_list span:nth-of-type(3) {
  margin-right: 0;
}
@media screen and (max-width: 450px) {
  .header .header_nav .nav_list {
    width: 100%;
    text-align: center;
  }
  .header .header_nav .nav_list span {
    display: inline-block;
  }
}
.header .hcarousel {
  /* 轮播图内容 */
  /* 轮播图左右箭头 */
  /* 轮播图导航栏 */
}
.header .hcarousel .item {
  height: 240px;
}
.header .hcarousel .item .carousel-caption {
  top: 0;
  display: flex;
  flex-direction: column;
  justify-content: end;
  align-items: center;
}
.header .hcarousel .item .carousel-caption h1 {
  font-size: 20px;
  font-family: "OSBold";
  margin-bottom: 0;
}
.header .hcarousel .item .carousel-caption p {
  font-size: 12px;
}
.header .hcarousel .item .carousel-caption button {
  width: 90px;
  height: 36px;
  background-color: #71b6d5;
  color: #fff;
  border: none;
  border-radius: 5px;
  margin-top: 30px;
  margin-bottom: 20px;
  font-size: 10px;
}
.header .hcarousel .carousel-control {
  background: transparent;
  opacity: 1;
  width: 10%;
}
.header .hcarousel .carousel-control .s_right {
  display: block;
  position: absolute;
  top: 50%;
  left: 65%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border: 2px solid #fff;
  border-radius: 50%;
  line-height: 30px;
}
.header .hcarousel .carousel-control .s_left {
  display: block;
  position: absolute;
  top: 50%;
  left: 35%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  border: 2px solid #fff;
  border-radius: 50%;
  line-height: 30px;
}
.header .hcarousel .left {
  left: 0px;
}
.header .hcarousel .right {
  right: 0px;
}
.header .hcarousel .carousel-indicators {
  bottom: 0px;
}
.header .hcarousel .carousel-indicators li {
  margin: 0 10px;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-radius: 50%;
  position: relative;
  background-color: transparent;
}
.header .hcarousel .carousel-indicators li span {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: block;
  width: 5px;
  height: 5px;
  background-color: #fff;
  border-radius: 50%;
}
.header .hcarousel .carousel-indicators .active {
  border-color: #fff;
}
@media screen and (min-width: 450px) {
  .header .hcarousel .left {
    left: 0px;
  }
  .header .hcarousel .right {
    right: 0px;
  }
  .header .hcarousel .item {
    height: 280px;
  }
  .header .hcarousel .item .carousel-caption h1 {
    font-size: 20px;
  }
  .header .hcarousel .item .carousel-caption p {
    font-size: 12px;
  }
  .header .hcarousel .item .carousel-caption button {
    width: 100px;
    height: 38px;
    margin-top: 50px;
    font-size: 12px;
  }
  .header .hcarousel .carousel-control .s_left,
  .header .hcarousel .carousel-control .s_right {
    width: 30px;
    height: 30px;
    line-height: 30px;
  }
  .header .hcarousel .carousel-indicators li {
    width: 20px;
    height: 20px;
  }
  .header .hcarousel .carousel-indicators li span {
    width: 5px;
    height: 5px;
  }
}
@media screen and (min-width: 768px) {
  .header .hcarousel .left {
    left: -23px;
  }
  .header .hcarousel .right {
    right: -23px;
  }
  .header .hcarousel .item {
    height: 380px;
  }
  .header .hcarousel .item .carousel-caption h1 {
    font-size: 30px;
  }
  .header .hcarousel .item .carousel-caption p {
    font-size: 16px;
  }
  .header .hcarousel .item .carousel-caption button {
    width: 140px;
    height: 44px;
    margin-top: 60px;
    font-size: 14px;
  }
  .header .hcarousel .carousel-control .s_left,
  .header .hcarousel .carousel-control .s_right {
    width: 40px;
    height: 40px;
    line-height: 40px;
  }
}
@media screen and (min-width: 992px) {
  .header .hcarousel .left {
    left: -26px;
  }
  .header .hcarousel .right {
    right: -26px;
  }
  .header .hcarousel .item {
    height: 450px;
  }
  .header .hcarousel .item .carousel-caption h1 {
    font-size: 40px;
  }
  .header .hcarousel .item .carousel-caption p {
    font-size: 20px;
  }
  .header .hcarousel .item .carousel-caption button {
    width: 150px;
    height: 50px;
    margin-top: 70px;
    font-size: 18px;
  }
  .header .hcarousel .carousel-control .s_left,
  .header .hcarousel .carousel-control .s_right {
    width: 44px;
    height: 44px;
    line-height: 44px;
  }
}
@media screen and (min-width: 1200px) {
  .header .hcarousel .left {
    left: -30px;
  }
  .header .hcarousel .right {
    right: -30px;
  }
  .header .hcarousel .item .carousel-caption h1 {
    font-size: 45px;
  }
  .header .hcarousel .item .carousel-caption p {
    font-size: 25px;
  }
}
@media screen and (min-width: 1300px) {
  .header .hcarousel .left {
    left: -75px;
  }
  .header .hcarousel .right {
    right: -75px;
  }
}
/* 背景 */
.header_bg {
  width: 100%;
  position: absolute;
  z-index: -99;
  height: 290px;
}
.header_bg .bg_img {
  height: 100%;
}
.header_bg .bg_img .bg {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: #13052357;
}
.header_bg .bg_img img {
  position: absolute;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
}
@media screen and (min-width: 450px) {
  .header_bg {
    height: 370px;
  }
  .header {
    height: 370px;
  }
  .header .header_nav {
    height: 80px;
  }
  .header .header_nav .title {
    font-size: 30px;
    display: block;
  }
  .header .header_nav .nav_list span {
    font-size: 12px;
  }
  .header .header_nav .nav_list span:nth-of-type(3) {
    margin-right: 0;
  }
}
@media screen and (min-width: 768px) {
  .header_bg {
    height: 480px;
  }
  .header {
    height: 480px;
  }
}
@media screen and (min-width: 992px) {
  .header_bg {
    height: 560px;
  }
  .header {
    height: 560px;
  }
}
/* 页尾 */
.footer .footer_start {
  height: 350px;
  background-color: #273a43;
}
.footer .footer_start ul {
  display: flex;
  justify-content: space-between;
  padding: 0;
  margin: 0;
}
.footer .footer_start ul li {
  list-style: none;
  width: 250px;
  color: #fff;
  margin-top: 60px;
}
.footer .footer_start ul li p {
  font-family: "OSLight";
  font-size: 13px;
  color: #ccc;
  line-height: 20px;
}
.footer .footer_start ul li h1 {
  font-family: "OSLight";
  margin-bottom: 30px;
}
.footer .footer_start ul li:nth-of-type(1) {
  padding-right: 40px;
}
.footer .footer_start ul li:nth-of-type(1) h1 {
  font-family: "YWtail";
}
.footer .footer_start ul li:nth-of-type(2) {
  padding-right: 40px;
}
.footer .footer_start ul li:nth-of-type(2) div {
  font-family: "OSLight";
  margin-bottom: 10px;
  font-size: 13px;
  line-height: 18px;
}
.footer .footer_start ul li:nth-of-type(2) div span {
  color: #71b6d5;
  margin-right: 16px;
  font-size: 16px;
}
.footer .footer_start ul li:nth-of-type(3) .lastest {
  display: flex;
  margin-bottom: 20px;
}
.footer .footer_start ul li:nth-of-type(3) .lastest .icon {
  padding-right: 16px;
}
.footer .footer_start ul li:nth-of-type(3) .lastest .icon::after {
  content: "\ee29";
  font-family: "icomoon";
  color: #71b6d5;
  font-size: 16px;
}
.footer .footer_start ul li:nth-of-type(3) .lastest .info p {
  margin-bottom: 0;
}
.footer .footer_start ul li:nth-of-type(3) .lastest .info p:nth-of-type(2) {
  color: #71b6d5;
}
.footer .footer_start ul li:nth-of-type(4) {
  margin-right: 0;
}
.footer .footer_start ul li:nth-of-type(4) div {
  width: 100%;
  background-color: #172227;
  height: 36px;
  display: flex;
  justify-content: space-between;
  border-radius: 5px;
  overflow: hidden;
}
.footer .footer_start ul li:nth-of-type(4) div input {
  width: 135px;
  border: none;
  outline: none;
  background: none;
  color: #ccc;
  padding-left: 10px;
}
.footer .footer_start ul li:nth-of-type(4) div button {
  width: 44px;
  background-color: #71b6d5;
  border: none;
}
.footer .footer_end {
  height: 90px;
  background-color: #172227;
}
.footer .footer_end .container {
  height: 100%;
  display: flex;
  align-items: center;
}
.footer .footer_end .container .info {
  flex: 5;
  color: #999;
}
.footer .footer_end .container .icon {
  flex: 1;
  text-align: right;
}
.footer .footer_end .container .icon a {
  display: inline-block;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  text-align: center;
  line-height: 30px;
  margin-left: 10px;
}
.footer .footer_end .container .icon a:nth-of-type(1) {
  background-color: #71b6d5;
}
.footer .footer_end .container .icon a:nth-of-type(1)::before {
  content: "\ee29";
  font-family: "icomoon";
}
.footer .footer_end .container .icon a:nth-of-type(2) {
  background-color: #2c3b42;
}
.footer .footer_end .container .icon a:nth-of-type(2)::before {
  font-family: "icomoon";
  content: "\ea90";
}
.footer .footer_end .container .icon a:nth-of-type(3) {
  background-color: #2c3b42;
}
.footer .footer_end .container .icon a:nth-of-type(3)::before {
  content: "\eaca";
  font-family: "icomoon";
}
@media screen and (max-width: 1200px) {
  .footer .footer_start ul li {
    width: 220px;
  }
  .footer .footer_start ul li:nth-of-type(1) {
    padding-right: 20px;
  }
}
@media screen and (max-width: 992px) {
  .footer .footer_start {
    height: 300px;
  }
  .footer .footer_start ul li {
    width: 180px;
    margin-top: 30px;
  }
  .footer .footer_start ul li p {
    font-size: 10px;
    line-height: 16px;
  }
  .footer .footer_start ul li h1 {
    margin-bottom: 26px;
    font-size: 24px;
  }
  .footer .footer_start ul li:nth-of-type(2) div {
    margin-bottom: 10px;
    font-size: 10px;
    line-height: 16px;
  }
  .footer .footer_start ul li:nth-of-type(2) div span {
    color: #71b6d5;
    margin-right: 5px;
    font-size: 12px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .icon {
    padding-right: 5px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .icon::after {
    font-size: 12px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .info p:nth-of-type(2) {
    color: #71b6d5;
    font-size: 12px;
  }
  .footer .footer_start ul li:nth-of-type(4) {
    padding-left: 10px;
  }
  .footer .footer_start ul li:nth-of-type(4) div {
    margin-top: 20px;
    width: 100%;
    height: 30px;
  }
  .footer .footer_start ul li:nth-of-type(4) div input {
    width: 120px;
    font-size: 12px;
  }
  .footer .footer_start ul li:nth-of-type(4) div button {
    height: 100%;
    width: 40px;
    background-color: #71b6d5;
    border: none;
    font-size: 12px;
  }
  .footer .footer_end .container .info {
    font-size: 12px;
  }
  .footer .footer_end .container .icon a {
    width: 25px;
    height: 25px;
    line-height: 25px;
    margin-left: 5px;
  }
  .footer .footer_end .container .icon a::before {
    font-size: 14px;
  }
}
@media screen and (max-width: 768px) {
  .footer .footer_start {
    height: 480px;
  }
  .footer .footer_start ul {
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .footer .footer_start ul li {
    width: 200px;
    margin-top: 10px;
  }
  .footer .footer_start ul li p {
    font-size: 12px;
  }
  .footer .footer_start ul li h1 {
    margin-top: 10px;
    margin-bottom: 20px;
    font-size: 20px;
  }
  .footer .footer_end .container .info {
    flex: 3;
    font-size: 12px;
  }
  .footer .footer_end .container .icon {
    flex: 1;
  }
  .footer .footer_end .container .icon a {
    width: 25px;
    height: 25px;
    line-height: 25px;
    margin-left: 5px;
  }
  .footer .footer_end .container .icon a::before {
    font-size: 14px;
  }
}
@media screen and (max-width: 450px) {
  .footer .footer_start {
    height: 400px;
  }
  .footer .footer_start ul {
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .footer .footer_start ul li {
    width: 145px;
    margin-top: 10px;
  }
  .footer .footer_start ul li p {
    font-size: 12px;
  }
  .footer .footer_start ul li h1 {
    margin-top: 10px;
    margin-bottom: 20px;
    font-size: 20px;
  }
  .footer .footer_start ul li:nth-of-type(1) {
    padding-right: 10px;
  }
  .footer .footer_start ul li:nth-of-type(1) p {
    height: 108px;
    overflow: scroll;
    margin-bottom: 0;
  }
  .footer .footer_start ul li:nth-of-type(2) {
    padding-right: 0;
  }
  .footer .footer_start ul li:nth-of-type(2) div {
    margin-bottom: 5px;
  }
  .footer .footer_start ul li:nth-of-type(2) p {
    height: 40px;
    overflow: scroll;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest {
    margin-bottom: 10px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .icon {
    padding-right: 5px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .info p:nth-of-type(1) {
    overflow: scroll;
    height: 50px;
  }
  .footer .footer_start ul li:nth-of-type(4) div input {
    width: 100px;
  }
  .footer .footer_end .container {
    display: block;
  }
  .footer .footer_end .container .info {
    font-size: 12px;
    margin: 20px 0;
  }
  .footer .footer_end .container .icon a {
    width: 25px;
    height: 25px;
    line-height: 25px;
    margin-left: 5px;
  }
  .footer .footer_end .container .icon a::before {
    font-size: 14px;
  }
}
@media screen and (max-width: 320px) {
  .footer .footer_start {
    height: 450px;
  }
  .footer .footer_start ul {
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .footer .footer_start ul li {
    width: 50%;
    margin-top: 10px;
  }
  .footer .footer_start ul li p {
    font-size: 12px;
  }
  .footer .footer_start ul li h1 {
    margin-top: 10px;
    margin-bottom: 20px;
    font-size: 20px;
  }
  .footer .footer_start ul li:nth-of-type(1) {
    padding-right: 10px;
  }
  .footer .footer_start ul li:nth-of-type(1) p {
    height: 108px;
    overflow: scroll;
    margin-bottom: 0;
  }
  .footer .footer_start ul li:nth-of-type(2) {
    padding-right: 0;
  }
  .footer .footer_start ul li:nth-of-type(2) div {
    margin-bottom: 5px;
  }
  .footer .footer_start ul li:nth-of-type(2) p {
    height: 40px;
    overflow: scroll;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest {
    margin-bottom: 10px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .icon {
    padding-right: 5px;
  }
  .footer .footer_start ul li:nth-of-type(3) .lastest .info p:nth-of-type(1) {
    overflow: scroll;
    height: 50px;
  }
  .footer .footer_start ul li:nth-of-type(4) div input {
    width: 100px;
  }
  .footer .footer_end .container {
    display: block;
  }
  .footer .footer_end .container .info {
    font-size: 12px;
    margin: 20px 0;
  }
  .footer .footer_end .container .icon a {
    width: 25px;
    height: 25px;
    line-height: 25px;
    margin-left: 5px;
  }
  .footer .footer_end .container .icon a::before {
    font-size: 14px;
  }
}
/* 公共标题 */
.common_title {
  position: relative;
  height: 90px;
  border-top: 1px solid #ccc;
}
.common_title .icon {
  position: absolute;
  left: 50%;
  top: -40px;
  transform: translateX(-50%);
  width: 80px;
  height: 80px;
  background-color: #fff;
  border-radius: 50%;
  text-align: center;
  font-size: 28px;
  line-height: 80px;
  color: #71b6d5;
}
.common_title p {
  font-family: "OSLight";
  width: 100%;
  text-align: center;
  margin-top: 40px;
  font-size: 24px;
}
.common_title p span {
  font-family: "OSBold";
}
@media screen and (max-width: 1200px) {
  .common_title p {
    font-size: 23px;
  }
}
@media screen and (max-width: 992px) {
  .common_title p {
    font-size: 21px;
  }
}
/* 回到顶部 */
#back {
  width: 100px;
  height: 100px;
  position: fixed;
  bottom: 30px;
  display: none;
}
#back img {
  width: 100%;
  height: 100%;
}
.back {
  animation: rubberBand 1s;
}
@keyframes rubberBand {
  0% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }
  30% {
    -webkit-transform: scaleX(1.25) scaleY(0.75);
    -ms-transform: scaleX(1.25) scaleY(0.75);
    transform: scaleX(1.25) scaleY(0.75);
  }
  40% {
    -webkit-transform: scaleX(0.75) scaleY(1.25);
    -ms-transform: scaleX(0.75) scaleY(1.25);
    transform: scaleX(0.75) scaleY(1.25);
  }
  60% {
    -webkit-transform: scaleX(1.15) scaleY(0.85);
    -ms-transform: scaleX(1.15) scaleY(0.85);
    transform: scaleX(1.15) scaleY(0.85);
  }
  100% {
    -webkit-transform: scale(1);
    -ms-transform: scale(1);
    transform: scale(1);
  }
}
@media screen and (max-width: 768px) {
  #back {
    width: 50px;
    height: 50px;
  }
}
